Lombardini LDW 502 User Manual

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FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06
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206-205
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Injection advance control and regulation
-Dismount the rocker arm cover, see page 40.
-Position the device on the head, in contact with cylinder no. 1.
-Mount the dial gauge on the valve controlled by tool ref. 1460.048.
-Via lever 1 of the tool, open the valve until it comes into contact
with the piston.
-Then rotate the crankshaft until the TDC is read in the dial gauge.
Then reset the hundredths.
-Remove the fuel pipes.
-Remove the O-ring in contact with the non-return valve and
replace it with the appropriate gasket - equipment component part
ref. 1460.074. Once the check has been completed, remove the
gasket and refit the O-ring.
Connect tool 1460.074 on pump n° 1. This will automatically
position the control lever to the maximum delivery. The tool is
provided with 3÷4 couplings for connection to a tank that must be
not lower than 30 cm from the pumps level. Coupling 2 is
equipped with a plastic pipe with internal drip collecting wire.
-Put cylinder 1 under compression and open the tank tap. Fuel
diesel will start to flow out from coupling 2.
-Slowly rotate the engine towards TDC 1 until the diesel fuel stops
leaking out.
-At this point with lever 1 (of fig. 182) move again the valve until it
touches the piston and read on the dial gauge how many
hundredths are missing from the previously reset value (TDC).
-To convert hundredths into degrees, consult the table below.
-Repeat the operation on the other cylinders.
Injection advance for currently used pump/injector unit
* With aluminuim crankcase
Engine Code Reference n° Rpm
Fuel system

Lombardini LDW 502 Specifications

General

Engine Type	Diesel, 4-stroke
Number of Cylinders	2
Fuel System	Indirect injection
Starting System	Electric start
Lubrication System	Forced lubrication with gear pump
Bore x Stroke	72 mm x 62 mm
Cooling System	Air-cooled
Displacement	505 cm³ (30.8 cu in)